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Kay [80]
3 years ago
8

Need help please! Exponential function! Multiple choice!

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
6 0
7. The negative multiplier means all function values will be negative. The horizontal asymptote remains y=0. The range is ...
  B. All real numbers y such that y < 0


10. Same as 7, except without the negative multiplier. The range is ...
  G. f(x) > 0
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A family wants to save for college tuition for their daughter. What continuous yearly interest rate r% is needed in their saving
sergey [27]

Answer:

The continuous yearly interest is  22.5% per year.

Step-by-step explanation:

Continuous yearly interest:

Continuous yearly interest is defined as the sum of the interest comes from principle and the interest comes from interest.

The formula for continuous interest yearly is

A=Pe^{rt}

where A = The final amount =$110,000

P= principle =$4,700

r= rate of interest

t= time (in year)= 14 years

\therefore 110,000= 4,700e^{r\times 14}

\Rightarrow e^{14r}= \frac{110,000}{4,700}

Taking ln both sides

\Rightarrow ln e^{14r}= ln(\frac{110,000}{4,700})

\Rightarrow {14r}= ln(\frac{1100}{47})

\Rightarrow r=\frac{ln( \frac{1100}{47})}{14}

\Rightarrow r = 0.225  (approx)

The continuous yearly interest is 0.225 = 22.5% per year.

4 0
3 years ago
The arrow of this spinner was spun 60 times. On 45 out of 60 times, the arrow landed on a section with a multiple of 4. What was
Anna11 [10]

Answer:

3

Step-by-step explanation: You divide 45 and 60 then you mutiple the number by 4 then find your answer after you done solved this is how you solve it 45 divided by 60=0.75 mutiply by 4=3

5 0
3 years ago
Read 2 more answers
A car rental agency advertised renting a car for $24.95 per day and $0.27 per mile. If Greg rents this car for 3 days, how many
Luda [366]
(24.95 * 3) + 0.27x < 100

74.85 + 0.27x < 100

0.27x < 25.75

plug those in and you should get it :)
6 0
3 years ago
Read 2 more answers
3/8 of flower garden are red and 3/6 are yellow which is greater, less than or equal
kirill115 [55]

Answer:

3/8 < 3/6

This is because, when the common denominator (24) is found, the fractions are 9/24 (red) and 12/24 (yellow).

3 0
3 years ago
After school, Tony biked toward the mountains at a constant rate of 8 mph. An hour later, Terry biked the same route at a consta
liberstina [14]

Answer: t-1

Step-by-step explanation: You’re welcome

7 0
3 years ago
Read 2 more answers
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